Search Results
Results 451 - 500 of 839
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Howdieshell T R - - 1996
OBJECTIVE: To compare inferior vena cava-right atrial extracorporeal bypass with intraluminal atriocaval shunting during hepatic vascular isolation. DESIGN: Prospective, randomized, controlled animal study. SETTING: University research laboratory. SUBJECTS: Adult mongrel dogs (n = 5) weighing 20 to 27 kg. INTERVENTIONS: Anesthetized dogs underwent laparotomy and sternotomy for vascular isolation. For ...
Suzuki A - - 1996
OBJECTIVES: To examine the development of coronary artery lesions in Kawasaki disease, we assessed the functional behavior and morphology of coronary arteries by intravascular ultrasound. BACKGROUND: Long-term follow-up studies of patients with Kawasaki disease have demonstrated the development of localized coronary stenoses even after aneurysms have regressed. It is also ...
Berning R A - - 1996
OBJECTIVES: This study was performed to define the significance of Doppler color flow mapping in demonstrating reversal of the direction of the normal physiologic flow across the atrial septum and ductus arteriosus in the human fetus. BACKGROUND: Reversal of the physiologic shunting across the ductus arteriosus or atrial septum in ...
Kawai J - - 1996
A 72-year-old woman with inferior myocardial infarction presented with both a pseudoaneurysm and a ventricular septal rupture detected by two-dimensional and Doppler echocardiography. The pseudoaneurysm originated from the junctional area between the inferior portion of the ventricular septum and posterior left ventricular wall. The short-axis view of two-dimensional echocardiography revealed ...
Yasu T - - 1996
Two cases in which a right-to-left shunt appeared across a patent foramen ovale after mitral surgery were clinically and echocardiographically followed for a long period of time. The right-to-left shunt markedly decreased in the supine position on transesophageal Doppler echocardiography in both cases within 2 years after the cardiac surgery, ...
Tesler U F - - 1996
We report a case of a 63-year-old woman who presented with pseudoaneurysm of the free wall of the left ventricle secondary to myocardial infarction, in the presence of angiographically normal major coronary arteries. This is the only such case we know of, in which the patient underwent successful surgical correction. ...
Odim J - - 1995
BACKGROUND: Since 1990, sternotomy has been the preferred approach for construction of a modified Blalock-Taussig shunt (MBTS) at Children's Hospital, Boston, Mass. In retrospect, we sought to test the hypothesis that this approach yields less mortality and morbidity than the traditional thoracotomy approach. METHODS AND RESULTS: One hundred four primary ...
Niwa K - - 1995
BACKGROUND: We report on 10 patients with Kawasaki disease and thrombocytopenia who were found to have a high incidence of coronary artery aneurysm and acute myocardial infarction. The clinical features of these patients, the cause of their thrombocytopenia and the relationship between cardiovascular pathology and thrombocytopenia were analyzed. METHODS: The ...
Kellow N H - - 1995
I.v. anaesthetic agents, including propofol, have not been shown to inhibit hypoxic pulmonary vasoconstriction (HPV). This may encourage the use of propofol in thoracic surgery where one lung ventilation (OLV) is required. We have compared the effects of maintaining anaesthesia with either isoflurane or propofol infusion on right ventricular function ...
Slater J P - - 1995
BACKGROUND: Right-side circulatory failure (RSCF), a common complication of heart transplant and left ventricular assist device recipients, results in decreased cardiac output because of diminished flow across the pulmonary circuit. We hypothesized that creation of a controlled venoarterial shunt would result in decompression of the right ventricle and improved systemic ...
Amsel B J - - 1995
Right-to-left shunting through a foramen ovale complicating acute right ventricular infarction and resulting in severe arterial hypoxemia has been described eight times before. Treatment strategies have often aimed at reducing the shunt. Four patients died. Less attention has been paid to attempts at revascularization and, despite a high incidence of ...
Grossi E A - - 1995
BACKGROUND: Recent advances in surgical techniques for the repair of left ventricular aneurysms (LVAs) include the use of an endoventricular patch to exclude the aneurysm cavity. This technique has replaced conventional linear plication of the aneurysm. The endoventricular patch technique remodels the left ventricular cavity to a more physiological geometry ...
Landzberg M J - - 1995
The safety and efficacy of transcatheter clamshell occlusion of patent foramen ovale for relief of severe arterial desaturation and dyspnea in the upright position due to intracardiac shunting were examined in eight patients with excessive risk of surgical patent foramen ovale closure. All patients had successful reduction of intracardiac shunting ...
Yeung M - - 1995
BACKGROUND: Hereditary hemorrhagic telangiectasia (HHT) is associated with a high incidence of pulmonary arteriovenous malformations (PAVMs), which can be the underlying cause for cerebral ischemia or brain abscess. The diagnosis of these malformations may be difficult, as clinical or radiological findings may be absent. Transcranial Doppler ultrasound (TCD) with saline ...
Baumgartner F - - 1995
Severe trauma to the liver and juxtahepatic cava require vascular isolation of the lesion. In addition to the techniques of vascular clamping and atriocaval shunting, venovenous bypass is a viable alternative to repair such injuries. We herein report its use in five consecutive patients. The technique obviates the hemodynamic sequelae ...
Anagnostopoulos C E - - 1995
This study reports on the initial clinical experience using anterior rectus sheath as potentially growing graft material in congenital heart lesions. The first seven patients with complex congenital lesions requiring a rectus sheath graft because of inadequate available pericardium are reviewed. The initial operations were: TOF (unicusp pulmonary valve) (re-op), ...
Rubalcava M A - - 1995
We studied ventricular and lumbar cerebrospinal fluid (CSF) in 16 patients with hydrocephalus secondary to meningeal cysticercosis, and samples were taken at the time of the surgical implantation of a ventricular shunt. All lumbar CSF samples revealed raised cell counts (mean, 72 +/- 28/mm3) and protein counts (mean, 78 +/- ...
Slater J P - - 1995
BACKGROUND: Right-sided circulatory failure, a complication of heart transplantation and left ventricular assist device use, results in decreased cardiac output due to diminished flow across the pulmonary circuit. We hypothesized that creation of a controlled right-to-left shunt would result in decompression of the right ventricle and improved systemic cardiac output ...
Rose A G - - 1995
The pathologic findings in two patients with idiopathic annular submitral left ventricular aneurysms and coexistent Takayasu's aortitis are documented. The evidence of chronic persistent myocarditis in one patient and marked myocardial fibrosis in the other supports two theoretical possibilities: first, the aneurysms may have an inflammatory etiology and, second, a ...
Friedman B M - - 1995
Ventricular aneurysms are circumscribed, thin-walled fibrous, noncontractile outpouchings of the ventricle. The majority are apically located, true aneurysms of the left ventricle (LV) that occur as a consequence of transmural myocardial infarction (MI). The precursor of aneurysm formation appears to be infarct expansion early after acute MI and occurrence generally ...
Bolognesi R - - 1995
A case of left ventricular false aneurysm of postinfarctual etiology with an unusually prolonged natural history (12 years survival) is reported. A first diagnosis of this rare cardiac complication was made in 1982 on the basis of hemodynamic and echocardiographic results. At that time the patient rejected surgical therapy. Eleven ...
Gamache F W FW - - 1995
Meningomyelocele/encephalocele with associated ventriculomegaly can be treated as a single-stage procedure (i.e., both lesions treated simultaneous) or as two-stage procedures (i.e., each lesion treated at a separate time). A delay in closure of the meningomyelocele/encephalocele is associated with a higher incidence of ventriculitis/ventricular shunt infection-particularly when closure is performed more ...
Sharma S - - 1995
Three patients with left ventricular pseudoaneurysm are presented. Two patients had inferior and one had an anterolateral wall Q wave myocardial infarction. Echocardiography with Doppler colour imaging provided the diagnosis in one case, whereas the correct diagnosis was possible on left ventriculography in all. Successful surgery using patch closure of ...
Somberg K A - - 1995
TIPS provides a side-to-side portosystemic shunt without a major abdominal operation. Although TIPS is relatively less invasive, it is associated with similar hemodynamic alterations as surgically created side-to-side shunts. An important difference is that a mild degree of portal hypertension is maintained with TIPS similar to small diameter shunts. TIPS ...
Sumino H - - 1995
The authors report a thirty-seven-year-old woman with systemic lupus erythematosus (SLE), a coronary aneurysm, and myocardial infarction. SLE was diagnosed at twenty-three years of age and treated with prednisolone. Seven years later, she developed inferior myocardial infarction, and coronary angiography showed an aneurysm in the proximal right coronary artery without ...
Hole T - - 1995
This is a report of a 63-year-old man who in the course of an inferior wall myocardial infarction developed a left ventricular aneurysm with communication to the right atrium and a haemodynamically significant intracardiac shunt. The unusual complication of a myocardial infarction was correctly diagnosed by transthoracic Doppler echocardiography, and ...
Jagtap P M - - 1995
To determine antiographic factors involved in left ventricular aneurysm formation after myocardial infarction, 50 patients with a first anterior wall myocardial infarction who underwent cardiac catheterisation within 6 months of infarction were evaluated. Extent of coronary artery disease and status of collateral circulation were studied in detail. Thirty patients had ...
Choudhury A R - - 1995
When determining a management plan for infantile hydrocephalus, the determining factor for or against the implantation of a shunt is the degree of ventricular dilatation. The author has devised a standardised method of estimating this, the use of which has been shown to achieve consistently successful results. Dilatation was determined ...
Nogueira E A - - 1995
Apical lesions of the left ventricle, ranging from endocardial thickening to aneurysms, are commonly found in Chagas' heart disease. These abnormalities can be identified by ventriculography, two-dimensional echocardiography and radioisotopic studies. Generally, clinical manifestations are limited to arrhythmias and thromboembolic. The lesions are usually small and apparently do not play ...
Laks H - - 1995
Acute or chronic myocardial ischemia may develop in patients with pulmonary atresia with intact ventricular septum and right ventricular-dependent coronary circulation. In such cases an aorta to right ventricle shunt may be used to reverse this ischemia. This report summarizes our experience with the placement of an aortic to right ...
Harris K M - - 1995
We describe a patient in whom multiple episodes of pulmonary and systemic embolization occurred in the setting of right ventricular infarction. The mechanism of paradoxical embolization was determined based on transesophageal echocardiographic findings that included right atrial spontaneous contrast, appendage thrombosis, patent foramen ovale with right-to-left atrial shunting, and absence ...
Lee M - - 1995
Fourth-ventricular shunting is commonly used to treat symptomatic posterior fossa cysts of the Dandy-Walker malformation and trapped fourth ventricle. Although the benefits of this procedure have been widely reported, there is a paucity of data on the pitfalls of posterior fossa shunting in the neurosurgical literature. During the 4-year period ...
Ozkutlu S - - 1995
This study was performed in 24 patients with tetralogy of Fallot in whom shunt operation was performed instead of total correction because of small left ventricular end-diastolic dimension. Left ventricular end-diastolic dimension was measured using M-mode and two-dimensional echocardiography pre- and at least one year postoperatively. There was no change ...
Borgbjerg B M - - 1995
Shunt complications and revisions are common in hydrocephalic patients treated with a ventriculo-atrial or a ventriculo-peritoneal shunt. The reported revision rate differs very much but the rate of revision is close to 50% in many papers. Data from 884 hydrocephalic patients treated with various shunt types in the period 1958-1989 ...
Stolf N A - - 1994
The early results of 79 patients who underwent left ventricular aneurysmectomy with geometric and circular reconstruction in a seven-year experience are analyzed. The most common indication for operation was congestive heart failure (78.4%), either isolated (25.3%) or with angina (53.1%). Sixty patients (76%) were in NYHA class III and 10 ...
Bolognesi R - - 1994
An exceptional combination of three major coronary anomalies: a single coronary artery, a congenital coronary-right ventricular fistula and a large proximal coronary aneurysm were found in a living 66-year-old patient suffering from post-myocardial ischaemic heart disease. Each coronary anomally and their influence on the clinical situation of the patient are ...
Wu M H - - 1994
BACKGROUND: The most common type of left ventricular-to-right atrial shunts are those associated with perimembranous ventricular septal defect when the defects diminish in size via aneurysmal transformation. This study is to characterize the echocardiographic features and to determine the possible mechanisms. METHODS AND RESULTS: From January 1986 to December 1992, ...
Shapira O M - - 1994
A 72-year-old man presented with a posterior left ventricular aneurysm 5 years after undergoing quadruple coronary artery bypass grafting. An angiogram demonstrated patent saphenous vein grafts, but also showed incidental asymptomatic aortic aneurysms. Left ventricular endoaneurysmorrhaphy was performed through a left thoracotomy. This approach affords excellent exposure of a posterior ...
Silver M T - - 1994
Right ventricular (RV) infarction is a well-recognized complication of some acute inferior myocardial infarctions. Recently, there have been numerous case reports of RV infarctions complicated by severe refractory hypoxemia secondary to right-to-left shunting through a patent foramen ovale. An additional case missed by transthoracic echocardiography and cardiac catheterization is reported ...
Evans N - - 1994
We studied 51 preterm infants (< 1500 gm) with serial color Doppler echocardiography to determine the impact of incompetence of the foramen ovale on the hemodynamic implications of shunting through a patent ductus arteriosus. Doppler and two-dimensional echocardiographic measures included left atrial/aortic root ratio, right (RVSV) and left ventricular stroke ...
Stikovac M - - 1994
A small patent ductus arteriosus (PDA) is compatible with a normal life span. A non-restrictive PDA may present with signs of heart failure, supraventricular arrhythmia's, bacterial endocarditis or endarteritis later in life. Fewer than 50% of patients, including those with small shunts, are symptomatic by the age of 50. Considering ...
Curran T - - 1994
We present nine cases of obstructive hydrocephalus (OH) associated with marked parkinsonism. Four patients had noncommunicating OH (NCOH) [three nontumoral aqueductal stenosis (AS), one tumoral AS]. The presentation was that of acute or subacute parkinsonism, usually at the time of acute recurrent ventricular obstruction. Three had a marked response to ...
Iwase K - - 1994
A 62-year old female patient in whom paradoxical right atrial to left atrial shunt flow through the foramen ovale was detected by transesophageal echocardiography during pneumoperitoneum for laparoscopic cholecystectomy was reported. This patient had a history of mitral valve replacement with residual tricuspid valve regurgitation. It was considered that the ...
Ivert T - - 1994
Left ventricular wall perforation after acute myocardial infarction, without immediate rupture to fatal haemopericardium, is a rare complication that may result in a pseudoaneurysm. Transoesophageal echocardiography demonstrated a posterior wall perforation and the unique blood flow pattern at the neck of a pseudoaneurysm 6 days after acute myocardial infarction. In ...
Sakamoto H - - 1994
The authors report four hydrocephalic children with cerebrospinal fluid (CSF) edema extending along the ventricular catheter of an obstructed CSF shunt. Three of the patients exhibited massive CSF edema along the ventricular catheter, yet they manifested neither ventricular enlargement nor apparent periventricular CSF edema despite increased intraventricular pressure. These findings ...
Pongratz G - - 1994
Coronary aneurysms resulting from a previous episode of Kawasaki's disease are considered an important cause of myocardial infarction in children. A case of a 19-year-old man presenting with an acute myocardial infarction associated with coronary aneurysms is described. These coronary lesions were previously evaluated angiographically and echocardiographically at the age ...
Longatti P L - - 1994
The availability of telemetric devices for intracranial pressure (ICP) measurements in line with a multipurpose valve (MPV) was shown to be the ideal condition for safe investigation of the problem of shunt independence in 21 patients. After percutaneous closure of the shunt, all but 4 patients developed some degree of ...
Jauss M - - 1994
BACKGROUND: Patent foramen ovale as a possible stroke risk factor can be diagnosed with transcranial Doppler sonography (TCD) by detecting intravenous contrast medium crossing from the right to the left atrium. The present study evaluates the reliability of this method. SUMMARY OF REPORT: We performed TCD and transesophageal echocardiography simultaneously ...
Ventureyra E C - - 1994
Ventriculoperitoneal shunt malfunction is most commonly caused by obstruction of the ventricular catheter by choroid plexus. Such ventricular catheter obstructions remain a major unsolved problem, despite improvements in materials, catheter design, new valves, and increased emphasis on precise techniques favoring optimal catheter placement. Shunt malfunction demands elective and often urgent ...
Schwarz G - - 1994
A persisting foramen ovale (PFO) is the most common cause of paradoxical air embolism. To detect right-to-left shunting, transthoracic contrast echocardiography was performed preoperatively in 301 patients scheduled for neurosurgical procedures in the sitting position. Echocardiography yielded evaluable results in 285 patients (94.7%). In 72 of 285 patients (25.2%), a ...
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